Request a specific version of Gtk when using gi

mdboom · mdboom · commit bb138bb3044e · 2013-05-20T15:35:17.000-04:00
diff --git a/lib/matplotlib/backends/backend_gtk3.py b/lib/matplotlib/backends/backend_gtk3.py
@@ -3,6 +3,16 @@
 import os, sys
 def fn_name(): return sys._getframe(1).f_code.co_name
 
+try:
+    import gi
+except ImportError:
+    raise ImportError("Gtk3 backend requires pygobject to be installed.")
+
+try:
+    gi.require_version("Gtk", "3.0")
+except ValueError:
+    raise ImportError("Gtk3 backend gtk3 development files to be installed.")
+
 try:
     from gi.repository import Gtk, Gdk, GObject
 except ImportError:
